巻号一覧
29 巻 (2012)
- 4 号 p. 68-
- 3 号 p. 43-
- 2 号 p. 28-
- 1 号 p. 1-
29 巻, 2 号
選択された号の論文の3件中1～3を表示しています
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特別講演資料
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伊東 克能2012 年 29 巻 2 号 p. 28-34
発行日: 2012年
公開日: 2012/07/27
ジャーナル フリーIn this review article, current status and perspective of abdominal MRI are presented, focused on Gd-EOB-DTPA enhanced MRI for high risk nodules in cirrhotic livers, portal flow MR imaging using non-contrast-enhanced MR angiography, and functional MR imaging in the pancreas and the kidney using time-spatial labeling inversion pulse in the clinical practice. Various kinds of functional and flow MR imaging can provide new diagnostic information which were not able to be obtained by conventional imaging techniques based on morphology. Development of the image analysis software will be indispensable for the wide spread in the future.抄録全体を表示PDF形式でダウンロード (2867K)
教育講演資料
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—低線量CT検診の場合—中山 富雄2012 年 29 巻 2 号 p. 35-38
発行日: 2012年
公開日: 2012/07/27
ジャーナル フリーIt is difficult to evaluate whether to have to recommend a new modality as a periodical screening program, although increasing with the power of detection of tiny tumor by improving of diagnostic imaging. The randomized-controlled trial which to evaluate the efficacy of cancer screening as most importance approach, is necessary for the long period and every tens of thousands of participants. National Lung Screening Trial to evaluate low dose CT screening for lung cancer demonstrated 20% reduction of lung cancer mortality according to the study protocol. There is, however, no movement to recommend low dose CT screening as a national screening program for lung cancer, since 27percent of high diagnostic workup rate and high fatality of biopsy cases. It is necessary to plan epidemiological study to evaluate a new promising modality as possible as an early stage, because there is unequal between the diagnostic modality and medical evaluation for cancer screening.抄録全体を表示PDF形式でダウンロード (440K)
速報
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大野 智之, 寺本 篤司, 鈴木 昇一, 小原 健, 津坂 昌利, 藤田 広志2012 年 29 巻 2 号 p. 39-42
発行日: 2012年
公開日: 2012/07/27
ジャーナル フリーBreast X-ray computed tomography(breast CT)has been developed in some research groups to overcome the limitations of mammography. However, the spatial resolution of the existing system is not sufficient to identify microcalcifications within the breast. The purpose of this study was to develop a prototype of high-resolution breast CT system, and to evaluate the developed system. Our prototype system consists of a micro-focus X-ray tube and a flat panel detector; a spatial resolution of 20µm is attained. In the experiments, we evaluated physical properties and image quality. As a result, a resolution of proposed system was better than conventional CT system used in clinical practice. As for evaluation of image quality using a breast phantom, mass lesion and microcalcifications within the phantom were clearly confirmed in 3-dimensions.抄録全体を表示PDF形式でダウンロード (1962K)
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